Improvement in pump-valves



HENRY C. BUIJKLEY AND AMOS SHEPARD, OF NEW BRITAIN, CONNECTICUT,ASSIGNORS TO THE UNION MANUFAC'IUR[NG` COMPANY OF SAME PLAGE..

Letters Patent No. 89,023, dateel April 20, 1869.

IMPROVEMENT IN PUMP-VALVES.

The Schedule referred to in these Letters Patent and making part of thesama.

To all whom 'it may concern Be it known that we, HENRY O. BULKLEY andAMos SHEPARD, of New Britain, in the county of Hartford,

and State of Connecticut, have invented a new and useful Improvement inPumps; aud we do hereby declare that the following is afull, clear, andexact description thereof, which will enable those skilled in the art tomake and use the same, reference being hadto the accompanying drawings,making a part of this specification, in which Figures 1, 2, 3, and 4,are transverse vertical sections ofdiferent styles of our invention, allof which are substantially the same.

Figure 5 is a plan or top view of the base of a pump, as tted, ready forthe application of our invention.

Figure 6 is a plan. or top View of the valve-seat.

Figure 7 is a plan or top view of the valve.

Figure 8 is a plan view of one end of the cylinder.A

Similar letters of reference indicate like parts.

Our invention consists in arranging the cylindervalveseat and valve insuch manner that one portion of the end of the cylinder shall comeindirect contact with the valve-seat, and another portion with thevalve, thus forming both an elastic and a solid metallic joint.

Our invention lis intended particularly to be applied to pumps which arefastened by screwing the cylinder into the base, and the drawings ofcylinder and base,

figs. 5 and 8, represent Asher Burrs improved pump.

connection, patented May'l, 1866, to which it is applicable, but it canbe applied to most of the suction-pumps now in use.

On the end of the cylinder B we make an annular rccess, a, the insidediameter of which is equal, or more, than the diameter of the valve C.

The depth of the recess c, or the distance from the valve-seat D to thenearest point inthe bottom of the recess c, should be a little less thanthe thickness of the valve .0.

A pump made, with our improvement' applied to it, is put together in thefollowing manner:

The valve C is placed in ithe recess a, when the cylinder B is securedto the base A`. As the cylinder B is brought to its place, it firstengages the valve C, penetrating or compressing it until it is stoppedby contact with the valve-seat D. The cylinder' B will penetrate orcompress the valve C, according to-its thickness.

Figs. 1, 2, 3, and 4, show different forms of our invention, butallare-for the same object, and accomplish the same result in a similarmanner.

If the valve-seat D is of the proper thickness, the end of the cylinderB, asit is screwed orturned iuto'the base A, will come in contact withit, and effectually prevent the cylinder from being turned further thanis required, thu's leaving the cylinder and base in their relativepositions, the spout and brake lon the cylinder being in their properpositions. n

In the ordinary pumps, the end of the cylinder rests on the valve()alone. As the cylinder is screwed or turned down, the valve C is'compressed between the valveseat D and end of cylinder. If the valvesare of different thicknesses, the relative position of cylinder and basewill vary accordingly.

By use, the valves are worn, and the action of the water softens them,consequently the cylinder becomes loose, and it is found necessary toscrew or turn down the cylinder to. tighten it. In this manner therelative positions of cylinder and base are changed,.and the spout andbrake thrown from their proper positions.

By our invention, we produce a pump in which the cylinder B and base Awill always bear the Same relative position, whatever may be thethickness of the valve O, thus compensating and accommodating it tovalves of'diti'ereut thicknesses.

When one valve is worn out, it can be replaced by another, withoutchanging the position of handle and spout.

We also produce a superior joint between the valveseat and cylinder.

What we claim as new, and' desire to secure by Letters Patent, is

A pump-valve, C, and valve-seat D, secured in their places, by meansofthe end of the cylinderB, resting on and in direct contact with boththe valve C and valve-seat D, all as and for the purpose substantiallyas required.

H. O. BULKLEY. AMOS SHEPARD.

Witnesses:

Fnen. G. MEAD, Guns. B. BROWN.

